177450

Appears in sequences

• Binomial transform of A012245 (characteristic function of factorial numbers).at n=25A143963
• a(n) = pg(3, n) + pg(4, n) + ... + pg(n, n) where pg(m, n) is the n-th m-th-order polygonal number.at n=30A241452
• a(n) is the number of dissections of a convex (n+2)-sided polygon by nonintersecting diagonals into triangles and quadrilaterals such that at least one of the dividing diagonals passes through a chosen vertex.at n=9A380591